Senior REACT Developer

Secure our Nation, Ignite your Future

Become an integral part of a diverse team while working at an industry-leading organization, where our employees come first. At ManTech, you’ll help protect our national security while working on innovative projects that offer opportunities for advancement.  

ManTech is seeking a Senior REACT Developer to join our dynamic team. The ideal candidate will have a robust background in developing complex UI components and full-stack applications using React and Node.js. This role involves working on both new and existing projects, with a strong emphasis on creating user-friendly, efficient, and secure web applications.

Responsibilities include but are not limited to:

• Develop and Maintain Web Applications:

  • Design, develop, and enhance user interfaces using React.

  • Implement back-end services using Node.js and Express.

  • Ensure applications are scalable, responsive, and meet high-performance standards.

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• Collaboration and Communication:

  • Collaborate with cross-functional teams to define, design, and ship new features.

  • Work closely with product managers, designers, and other stakeholders to understand requirements and translate them into technical specifications.

  • Participate in code reviews, providing constructive feedback and mentoring junior developers.

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• Technical Leadership:

  • Lead the architectural design and development of new applications from scratch.

  • Implement best practices in code quality, testing (Mocha, Chai), and continuous integration.

  • Stay up-to-date with the latest industry trends and technologies, ensuring the team uses modern, efficient, and secure development practices.

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Required Qualifications:

• A bachelor’s degree and a minimum of 10 years of professional software development experience.

• Extensive experience with React, Redux, Node.js, Express, and MongoDB.

• Proven track record of developing enterprise-level applications and services.

• Strong understanding of RESTful APIs, GraphQL, and database design.

• Experience with TypeScript, Tailwind CSS, and UI frameworks like Material-UI.

• Familiarity with testing frameworks such as Jasmine, Karma, Mocha, and Chai.

• Experience in developing and maintaining full-stack applications from concept to deployment.

• Proficiency in front-end technologies, including HTML, CSS, and JavaScript.

• Strong problem-solving skills and the ability to debug complex issues.

• Excellent communication and teamwork skills.

• Ability to work in a fast-paced, agile environment.

• Strong understanding of version control systems (e.g., Git).

Preferred Qualifications:

• Experience with cloud services (AWS, Azure).

• Knowledge of DevOps practices and tools (Docker, Kubernetes).

• Experience with GIS applications and services.

• Contributions to open-source projects.

Physical Requirements: 

• The person in this position will need to be able to operate a computer and other office productivity machinery, such as a calculator, copy machine and computer printer. 

The projected compensation range for this position is $84,900-$141,100. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, ManTech invests in it’s employees beyond just compensation. ManTech’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

For all positions requiring access to technology/software source code that is subject to export control laws, employment with the company is contingent on either verifying U.S.-person status or obtaining any necessary license. The applicant will be required to answer certain questions for export control purposes, and that information will be reviewed by compliance personnel to ensure compliance with federal law. ManTech may choose not to apply for a license for such individuals whose access to export-controlled technology or software source code may require authorization and may decline to proceed with an applicant on that basis alone.

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law.

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services.

If you are a qualified individual with a disability or a disabled veteran, you have the right to request an accommodation if you are unable or limited in your ability to use or access http://www.mantech.com/careers/Pages/careers.aspx as a result of your disability. To request an accommodation please click careers@mantech.com and provide your name and contact information.

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